A formula of calculating the interfacial shear stress of fiber reinforced polymer(FRP)-glued beams under three-load conditions was derived according to linear elastic theory,the result matched closely with that of finite element analysis.Meanwhile,parameter analysis was carried out.The analysis showed that reinforcement ratio,elastic modulus ratio of FRP to glulam and the number of vertical embedded FRP were the main factors related to the maximum bond shear stress.In practical design,the proper selection of parameters reduced the FRP-wood interface bonding shear stress.The comparison of calculated results by the method with that of the traditional enhanced method showed that the new FRP enhanced method reduced 53%～75% of interfacial shear stress.